The Legend of Three Kingdoms (simplified Chinese: 三国群英传; traditional Chinese: 三國群英傳; pinyin: Sān Guó Qún Yīng Zhuàn) is a video game series originally developed by OdinSoft, later by UserJoy Technology. The series includes seven PC-based single-player titles and three online and one mobile titles, which haven been released in China, Japan, South Korea, Russia, the United States, and South Asia. It uses the events in the novel Romance of the Three Kingdoms as the backdrop for the plot.